化合物K201 T24239

Product Introduction
Bioactivity


英文名: K201

描述: K201 (JTV-519) 是一种 Ca2+ 依赖性阻滞剂，通过稳定兰尼碱受体来防止缺血性心脏和骨骼肌 (SkM) 中的肌质网异常 Ca(2+) 泄漏。

体外活性: In isolated cardiac and SkM SR microsomes, K201 slowed the rate of SR Ca(2+) loading, suggesting potential SERCA block and/or RyR agonism. K201 displayed Ca(2+)-dependent inhibition of SERCA-dependent ATPase activity, which was measured in microsomes incubated with 200, 2, and 0.25 µM Ca(2+) and with the half-maximal K201 inhibitory doses (IC50) estimated at 130, 19, and 9 µM (cardiac muscle) and 104, 13, and 5 µM (SkM SR). K201 (≥5 µM) increased RyR1-mediated Ca(2+) release from SkM microsomes. Maximal K201 doses at 80 µM produced ∼37% of the increase in SkM SR Ca(2+) release observed with the RyR agonist caffeine. K201 (≥5 µM) increased the open probability (Po) of very active ('high-activity') RyR1 of SkM reconstituted into bilayers, but it had no effect on 'low-activity' channels. Likewise, K201 activated cardiac RyR2 under systolic Ca(2+) conditions (∼5 µM; channels at Po ∼0.3) but not under diastolic Ca(2+) conditions (∼100 nM; Po < 0.01)[1].

存储条件: Powder: -20°C for 3 years | In solvent: -80°C for 1 year

溶解度: DMSO : 25 mg/mL (54.22 mM)


关键字: JTV519 | K201

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